GB2254184B - Cavity length control for ring laser gyros - Google Patents

Cavity length control for ring laser gyros

Info

Publication number
GB2254184B
GB2254184B GB9200476A GB9200476A GB2254184B GB 2254184 B GB2254184 B GB 2254184B GB 9200476 A GB9200476 A GB 9200476A GB 9200476 A GB9200476 A GB 9200476A GB 2254184 B GB2254184 B GB 2254184B
Authority
GB
United Kingdom
Prior art keywords
cavity length
length control
ring laser
laser gyros
gyros
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
GB9200476A
Other versions
GB2254184A (en
GB9200476D0 (en
Inventor
John G Mark
Daniel A Tazartes
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Northrop Grumman Guidance and Electronics Co Inc
Original Assignee
Litton Systems Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Litton Systems Inc filed Critical Litton Systems Inc
Publication of GB9200476D0 publication Critical patent/GB9200476D0/en
Publication of GB2254184A publication Critical patent/GB2254184A/en
Application granted granted Critical
Publication of GB2254184B publication Critical patent/GB2254184B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C19/00—Gyroscopes; Turn-sensitive devices using vibrating masses; Turn-sensitive devices without moving masses; Measuring angular rate using gyroscopic effects
    • G01C19/58—Turn-sensitive devices without moving masses
    • G01C19/64—Gyrometers using the Sagnac effect, i.e. rotation-induced shifts between counter-rotating electromagnetic beams
    • G01C19/66—Ring laser gyrometers
    • G01C19/661—Ring laser gyrometers details
    • G01C19/665—Ring laser gyrometers details control of the cavity

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Gyroscopes (AREA)
  • Lasers (AREA)
GB9200476A 1991-01-11 1992-01-10 Cavity length control for ring laser gyros Expired - Fee Related GB2254184B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/640,179 US5074664A (en) 1991-01-11 1991-01-11 Computer generated cavity length control with automatic gain control for ring laser gyros

Publications (3)

Publication Number Publication Date
GB9200476D0 GB9200476D0 (en) 1992-02-26
GB2254184A GB2254184A (en) 1992-09-30
GB2254184B true GB2254184B (en) 1994-11-23

Family

ID=24567166

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9200476A Expired - Fee Related GB2254184B (en) 1991-01-11 1992-01-10 Cavity length control for ring laser gyros

Country Status (6)

Country Link
US (1) US5074664A (en)
CA (1) CA2048357C (en)
DE (1) DE4126905C2 (en)
FR (1) FR2672986B1 (en)
GB (1) GB2254184B (en)
IT (1) IT1267106B1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5208653A (en) * 1991-08-06 1993-05-04 Litton Systems, Inc. Multioscillator ring laser gyroscope adaptive digitally controlled cavity length control system
US5374990A (en) * 1991-01-11 1994-12-20 Litton Systems, Inc. Active magnetic field tuning for dispersion equalization of a multi-oscillator
US5309459A (en) * 1992-10-20 1994-05-03 Honeywell, Inc. Laser gyro smart digital PLC acquisition control
US5450198A (en) * 1993-10-01 1995-09-12 Honeywell Inc. Laser gyro microprocessor based smart mode acquisition and high performance mode hopping
US6067160A (en) * 1997-02-20 2000-05-23 Honeywell Inc. Enchancing path length resets in a ring laser gyro
DE10018778A1 (en) * 2000-04-15 2001-10-18 Zeiss Carl Jena Gmbh Method and configuration for self-calibrating a diode-pumped, variable solid-state laser uses a piezo actuator or Brewster window via laser-active material amplifying bandwidth to alter laser radiation frequency or wavelength
US7058111B2 (en) * 2001-05-24 2006-06-06 Honeywell International Inc. Arrangements for increasing sputter life in gas discharge tubes
US7271915B2 (en) * 2005-02-04 2007-09-18 Honeywell International Inc. System, circuit and method for off-mode-peak operation of ring laser gyroscopes
CN102003958B (en) * 2010-10-01 2012-07-04 中国人民解放军国防科学技术大学 Control device for working point of four-frequency laser gyro
RU2487317C1 (en) * 2012-02-09 2013-07-10 Открытое акционерное общество "Раменский приборостроительный завод" (ОАО "РПЗ") Laser gyroscope resonator
CN110514196A (en) * 2019-08-13 2019-11-29 中国航空工业集团公司西安飞行自动控制研究所 The calibration factor compensation method of the long control system of chamber and loop laser angle-measuring equipment
CN112556679B (en) * 2020-11-19 2022-03-18 中国人民解放军国防科技大学 Positive and negative plug-cock Raman space four-frequency differential laser gyro

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1245282A (en) * 1967-10-17 1971-09-08 Honeywell Inc Improvements in and relating to molecular gas ring lasers
GB2062950A (en) * 1979-11-05 1981-05-28 Litton Systems Inc Ring lasers
GB2071905A (en) * 1980-03-14 1981-09-23 Deutsche Forsch Luft Raumfahrt Angular velocity sensor based on a ring laser
US4755057A (en) * 1984-10-02 1988-07-05 Litton Systems, Inc. Path length control method for ring laser gyroscope

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4781462A (en) * 1987-02-09 1988-11-01 The Singer Company Path length control signal derivation circuit for a laser angular rate sensor
US4963026A (en) * 1988-03-14 1990-10-16 Litton Systems, Inc. Cavity length control apparatus for a multi-oscillator

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1245282A (en) * 1967-10-17 1971-09-08 Honeywell Inc Improvements in and relating to molecular gas ring lasers
GB2062950A (en) * 1979-11-05 1981-05-28 Litton Systems Inc Ring lasers
GB2071905A (en) * 1980-03-14 1981-09-23 Deutsche Forsch Luft Raumfahrt Angular velocity sensor based on a ring laser
US4755057A (en) * 1984-10-02 1988-07-05 Litton Systems, Inc. Path length control method for ring laser gyroscope

Also Published As

Publication number Publication date
ITRM920010A1 (en) 1993-07-09
US5074664A (en) 1991-12-24
CA2048357A1 (en) 1992-07-12
CA2048357C (en) 1995-12-19
DE4126905C2 (en) 2000-04-13
GB2254184A (en) 1992-09-30
GB9200476D0 (en) 1992-02-26
ITRM920010A0 (en) 1992-01-09
IT1267106B1 (en) 1997-01-24
FR2672986B1 (en) 1993-12-10
FR2672986A1 (en) 1992-08-21
DE4126905A1 (en) 1992-07-16

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20040110